During a wind -strom, when high speed winds blow over the tin roofs of houses, the tin roofs get lifted and blown away. This happen because:
a. High speed winds reduce air pressure over the tin roofs
b.High speed winds increase air pressure over the tin roofs
c.High speed winds do not change air pressure over the tin roofs
d.Higher air pressure acts from below the tin roofs
A and B
B and C
A and D
Only D
Which of the following phenomenon does not occur in the atmosphere?
cyclone
earth quake
wind
tornado
Thunderstorms develop very frequently in areas having
polar climate
typical climate
desert climate
temperate climate
A violent storm lifts people and cars off the ground and hurls them hundreds of meters away. This storm is likely to be a
thunderstorm
typhoon
Which of the following is not a correct precaution to be observed so as to protect from lightning during a thunderstorm?
do not sit near a window
do not lie on the ground
do not sit in a car
do not stand under a tall tree
Which of the following process provides energy required to form and sustain a cyclone?
condensation of water vapour
vaporisation of water
kinetic energy of blowing wind
fast moving sea waves
Which of the following is not the name of a huge revolving storm caused by very high speed widns blowing around a central area of very low pressure?
hurricane
The centre of a cyclonic storm called the 'eye of cyclone' is an area of
very low air pressure
moderate air pressure
very high air pressure
gradually rising air pressure
Which of the following can move over the land without coming to an end quickly?
Which of the following places is not likely to be affected by a cyclone?
Chennai
Mangaluru
Patna
Puri
